Update: 11 months later; I bumped the stars up.+ These are still holding up after daily trips outside to the mailbox, rain, sleet & snow. I wear these often indoors daily when my feet are cold. I even wear them for weekly for speedy errands into town.-read my original review on the grip of the soles outdoors on frosty deck/driveway surfaces. My opinion hasn't changed.+ Washed once; heavily soaked, then washed on delicate cycle and AIR DRIED. These have held in tact.Bumping it up to 4 stars.-3.5 stars for thinner than expected featured memory foam...however, 10 months later, although flattened, this slipper is not what I would consider uncomfortable at all.(I, typically & grudgingly, add insoles when I end up with ANY flattened insoles, however, I have yet felt the need to bother doing so with these. (as I said, yet :)TIP for longer wear: Out of the package, I, always, immediately spray coat all my in/outdoor slippers (fabric part only, heavily at the sole seams & stitched areas) with silicone/water-guard to keep them easy to clean & to protect from the wet pavement, morning grass dew/seasonal rain/snow.*Don't make the mistake I once did long ago & spray the interior bed-sole fabric. LOL :) Your feet will slide right out of the slipper with every step.------------------------------------------------------------------------------------------------------------------------Original review Jan 2021:Bought for Quick on/off unisex slippers by the back door to run outside.+Easy slip on, Easy slip off. Quick, even with heavy winter socks on.+There is a slight heel edge "lip" that compresses/decompresses perfectly & does not cause a bit of delay, LOL. A must in my book!+I do like that the heel is slightly sunken for a "smoother walk".+The flexible/pliable, durable soles grips nicely indoors without flip-flop or clomping sound effects.+I feel like these soles will have a long life and not split across the foot. The pliable rubber reminds me of a bicycle tire, so to speak.-Glued, not sewn soles.-The soles SLIDE a lot & do not grip on wintery mornings with a thin layer of frosty ice on the deck, outdoor mats and driveway.+Grips very well on all outdoors surfaces when there is no ice or frost.+As a slip on "clog" style, they are easy to walk in & stay close at the heels.-THIN Insole - the insole is NOTHING TO BRAG ABOUT; slipping them on, out of the package brand new, it feels thin, :( but, not uncomfortable, just disappointing (memory foam featured/advertised.) The typical, thin insole you would find in a budget slipper. -I can feel the rubber heel/sole through the foam when standing. :(--Unless the memory foam actually holds its' memory, I don't have high hopes that these will retain its' comfort for more than a few weeks.+Nice & Roomy for Wide Foot - I would say these would also be helpful to those with bunion pain.+Warm, Lightweight & Breathable Fabric - (not moisture resistant fabric nor advertised as so; I will be spraying these with Scotchguard. Even dewy morning grass causes glued soles to separate from the fabric before it's time. Will help the fabric to stay fresh looking longer also.+I feel as if this COTTON fabric will NOT stretch out over time, which is a plus.+Ordered size 8. I have never converted to a men's sizing chart before, so, I can't accurately comment on the fit, especially with slippers. I can say, I am HAPPY that they are a TAD large (to accommodate when wearing heavy winter socks.)+As stated by happy reviewers, they also offer Hard to find sizes.